create table javabox_memo(
	no number primary key,
	send_id varchar2(50) not null,
	get_id varchar2(50) not null,
	title varchar2(200) not null,
	content varchar2(500) not null,
	check_mess varchar2(10) not null,
	mdate date
)

drop sequence javabox_memo_sql;
create sequence javabox_memo_sql nocache;

drop table javabox_memo;
--send_id get_id title content mdate
select * from javabox_memo
insert into javabox_memo
values(javabox_memo_sql.nextval, 'java', '4444', '아 ㅠㅠ', '왜안되지', 1, sysdate);

insert into javabox_memo
values(javabox_memo_sql.nextval, 'java', '4444', '아 ㅠㅠ', '왜되지', 1, sysdate);

select no, send_id, get_id, title, content, mdate, check_mess
from javabox_memo
where get_id='4444'
order by no desc;